Re: [matplotlib-devel] pyplot commands appear to ignore interactive status

[Mike K. <mc...@gm...>]

On 2/7/11 9:02 PM, Benjamin Root wrote:
> On Mon, Feb 7, 2011 at 7:20 PM, Mike Kaufman <mc...@gm...
> <mailto:mc...@gm...>> wrote:
>
>
>     using a recent svn (r8900), I've noticed that after starting from a
>     regular python shell:
>
>      >>> import matplotlib.pyplot as plt
>      >>> plt.isinteractive()
>     False
>      >>> plt.plot([1,2,3],[1,3,2])
>     [<matplotlib.lines.Line2D object at 0x114e7a090>]
>      >>> plt.plot([1,2,3],[1,2,3])
>     [<matplotlib.lines.Line2D object at 0x114e7a590>]
>     # plt.draw() is not required, the figure pops up
>     # and both plots are shown
>      >>> plt.xlim(1,2)
>     (1, 2)
>     # again this works immediately no draw() required
>      >>> plt.xlabel('aaa')
>     <matplotlib.text.Text object at 0x1033a2290>
>     # ditto, no draw() required
>
>     but if the axes methods are used, then interactive status is honored:
>
>      >>> plt.gca().set_xlabel('bbb')
>     <matplotlib.text.Text object at 0x1033a2290>
>      >>> plt.gca().plot([1,2,3],[3,2,1])
>     [<matplotlib.lines.Line2D object at 0x114e7cf90>]
>      >>> plt.gca().set_xlim(1,3)
>     (1, 3)
>     # all these require a plt.draw() to show up...
>
>     I think that this is a misfeature, but maybe this is desired behavior?
>
>     M
>
>
> Which backend are you using and using which OS?

Good question. Snow Leopard and the MacOSX backend. If I use the Gtk 
backend this bug does _not_ occur (though I have to use the plt.show() 
command to bring up the window --- which hangs the shell...)

M